Our Practice

Making smiles in Washington, D.C. wider and brighter since 1994

Welcome to Keene Dental, conveniently located near Dupont Circle. Here, our professionals know that dental health is not just about white smiles: it’s about having strong teeth and healthy gums. It’s about prolonging the simple joy of eating delicious things! Our mission is to help our patients accomplish these goals in a painless, compassionate, and efficient way.

We aim to educate our patients in a safe environment while offering them necessary comprehensive care. We understand that many people have anxiety about dental treatment, so we created a soothing environment and a scheduling system that never keeps you waiting long. By combining the latest technology with traditional techniques, we give our patients the best care in the District.

Tobias Keene, D.D.S.

Hailing from Richmond, Virginia, Dr. Tobias Keene brings a bit of unabashed Southern hospitality to all his patients. He moved to Washington, D.C. over thirty years ago as a freshman at Ivy College. Right after graduation, he attended World University’s School of Dentistry. Before opening Keene Dental in 1994, he worked for free clinics and some of the finest practices in the District. He is part of the 123 Dental Association and stays up-to-date on the latest dental discoveries. When not striving to keep his patients happy and healthy, he’s enjoys hiking with his family in Rock Creek Park.

Ava Lee-Sherazi, D.D.S.

Dr. Lee-Sherazi is from Baltimore, MD. Her interest in dentistry began after she chipped her tooth in the 8th grade. She was fascinated by how her own dentist had fixed it better than new. In 2003, she graduated from Nameless College with a Bachelor of Science in Biology. In 2007, she earned her Doctorate in Dental Surgery at World University’s School of Dentistry, where she studied under Dr. Baltas. She specializes in orthodontia and oral surgery and is a member of the 123 Dental Association. During her spare time, she kickboxes and runs with her wife.

Derek Shin, RDH

In 2007, Derek Shin earned his dental hygiene associate’s degree at Untitled Technical College right here in Washington, D.C. He started at Keene Dental in 2008. As a District native, he treats all his patients with the familiarity of a neighbor. He’s passionate about bringing considered, quality care to all people, and devotes a lot of time volunteering his services at free clinics. He loves spending time with his dog and watching science fiction films with his partner.

Maja Peterson , Office Manager

Maja earned her associate's degree in Office Administration at Nameless College. In 2000, she moved to Washington, D.C. with her husband and joined the Keene Dental team. She is a scheduling extraordinaire and prides herself in having developed the system that keeps patient wait time under five minutes. As an interior design enthusiast, she took it upon herself to create an inviting atmosphere for our office. She enjoys rock climbing, painting, and video games.